Anatomy and Cell Biology 2221 Lecture Notes - Lecture 9: Olecranon, Palmar Aponeurosis, Ulnar Artery
17 Oct 2016
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Carpals (8), metacarpals (5), and phalanges (14) Objectives: name, identify & describe the muscles of the anterior forearm, including their bony attachments, actions. & innervation: name, identify & describe the course of nerves in the forearm, name, identify & describe the course of arteries in the forearm. Muscles of the anterior forearm: identification superficial. Muscles anchored on the medial epicondyle find the landmark that helps orientate. F: flexion at the radial side of wrist, hand abduction. F: hand flexion, tighten palmaris on palm. I: palmar aponeurosis- doesn"t go to bones in the wrist/hands. I: pisiform, hook of hamate, base of 5th metacarpal. Most of its mass is on medial forearm. Leverage advantage that crosses anterior forearm so it can contribute to forearm flexion at elbow. Hand abduction- harder than adduction because styloid process or radius is in the way. Because of line of pull- contributes to adduction.
